厦 门 四 信 通 信 科 技 有 限 公 司
Xiamen Four-Faith Communication Technology Co., Ltd.
Add:J1-J2,3rd Floor,No.44,GuanRi Road,SoftWare Park,XiaMen,China
6
Zip Code
:
361008
Tel:+86 592-6300320, +86 592-6300321, +86 592-6300322 Fax:+86 592-5912735 http://
www.four-faith.com www.fourfaith.com
outside), and insert card sheath back to the SIM/UIM card outlet.
Warning:
Forbid to install SIM/UIM card when powered!
Installation of antenna:
Screw the SMA male pin of the antenna to the female SMA outlet of the DTU
tightly. Warning: The antenna must be screwed tightly, or the singal quality of antenna
will be influenced!
Installation of cable:
Insert DB9F end of the RS232/RS485 data cable into the DB9M interface of DTU,
and connect the other end with user’s device.
The signal connection of the RS232 data cable is as follows:
The signal connection of the RS485 data cable is as follows:
DB9F
DB9F
RS232 data cable
1
RXD 2
TXD 3
4
GND 5
6
7
8
9
1
2 RXD
3 TXD
4
5GND
6
7
8
9
DB9F
RS485 data cable
1
2
3
4
5
A 6
7
8
B 9
A (RED)
B (BLACK)